Governor for explosive engines



- July 24, 1928. 1,678,219.

' A. HANSEN ET AL v GOVERNOR FOR EXPLO'SIVE ENGINES Filed March 17, 192'"! 2 shees-sneet l #5 5 al Mm W 9 27 a gwwznlfox July 24, 1928. l A. HANSEN ET AL GOVERNOR FOR EXPLOSIVE ENGINES Filed March 17, 1927" 2 Sheets-sheaf. 2

Al-Tense. IVLlTm r Patented July 24, 1928.

ALBERT HANSEN AND MORTEN J. TORP, OF HARLAN, IGWA.

GOVERNOR FOR EXPLOSIVE ENGINES. T

Application filed March 17,1927. SeriaIN'o. 176,252.

The present invention is directedto improvements in governors for explosive engines. i

The primary object of the invention is to provide a device of this character so con structed that it can be quickly attached to the cam shaft of the engine and when in place will automatically control the throttle valve in order that the motor will be prevented from operating beyond a predetermined speed.

Another object of the invention is to provide a governor so constructed that it can be attached to the cam shaft of the engine upon simply removing the usual cam shaft nut and drilling an opening in the shell of the distributor unit.

In the accompanying drawing:

Figure 1 is a fragmentary side elevation of a tractor engine, showing the device in place thereon.

Figure 2 is a vertical sectional view through the governor and cam shaft connection.

Figure 3 is a front elevation of the de vice.

Figure 4 is a sectional view through the governor casing.

Referring to the drawings, 1 designates an engine, 2 the cam shaft thereof, and 3 the distributer, which as customary, 1s provided with a protecting shell 4;

The forward end of the cam shaft is threaded, as at 5, for the reception of the usual holding nut, which is removed when our governor is attached, there being an opening 6 formed in the shell 4, the purpose of which will be later explained.

A spindle 7 is employed and has its rear end provided with a head 8 having a threaded socket 9 therein for engaging the threaded end of the cam shaft 2, as clearly shown in Figure 2 of the drawing, the spindle being extended through the opening 6 of the shell 4.

The spindle 7 is provided with an axial bore 8 in which is slidably mounted a rod 9, said rod having a cone 1 formed thereon, and extending from the major end of the cone is a pin 11, the purpose of which will later appear.

The governor casing 12 includes a collar 13 which is engaged upon the spindle 7 and retained in place thereon by a set screw 14.

The governor weights 15 consist of angularly disposed arms 16 and 17, the latter constituting Weights swinga ble outwardly by e i gal. for in or er a the ms 6 l more nwardly t r-engagem nt with the cone.

These arms are pivotally supported upon opposite sides of the cone 10 by studs 18 and are maintained in their inoperative position by coil springs 19 which have one of their terminals connected to the arms 17 and their other terminals secured to the back wall 20 of the casing 12.

The arms 16 have terminal heads 21 which are provided with beveled faces 22 which are in a plane with the beveled surface of the cone 10, but normally disengage therefrom, as shown in Figure 2 of the drawing. 1

The cover plate 23 is secured upon the open side of the casing 12 by screws 24, said plate having a central bearing 25 in which the pin 11 is slidably engaged for contact with the arm 26. This arm has its lower end fixed to a rock shaft'27 supported by the bracket 28 which may be supported in any suitable manner on the tractor frame. To the outer end of the shaft 27 is fixed the lever 28 having the forward end of a link 29 pivotally connected to its upper end, said link having its rear end connected with the usual throttle valve of the engine, not shown. A

It will be obvious that as the speed of the cam shaft increases, the arms 17, by centrifugal force will swing outwardly, doing which causes'the arms 16 to swing inwardly, whereupon the beveled faces 22 of the head 21 will engage the beveled surface of the cone, thus forcing the cone outwardly. As the cone moves outwardly, the pin 11 will rock the arms 26, thereby rocking the shaft 27, likewise the lever 28, which through the medium of the link 29, the throttle valve will be operated to reduce the flow of fuel, thus reducing the speed of the engine. As the speed of the engine decreases the springs 19 will move the governor weights to their normal or inoperative position and will remain thus until the speed is again increased.

Since the weights 15 are pivotally mounted for movement at right angles to the longitudinal axis of the spindle 7 the device can becompactly arranged and consequently can be placed in a restricted spacef Having thus described the invention, We claim:

A governor for explosive engines, in combination With the cam shaft and throttle valve thereof, said cam shaft having a threaded end, a distributer associated With the cam shaft and including a shell having an opening therein, a spindle engaged in said opening and having a head for detachable engagement With the threaded end of the cam shaft, a casing rotatable With the spindle, governor Weights pivotally mounted in the casing and including angularly disposed arms, certain of the arms having beveled faces, a cone carried by the spindle, a pin carried by the cone, the governor Weights being operable by centrifugal force to cause the beveled faces to engage the cone to slide the pin, and means operable by the pin for controlling the movement of the throttle valve.

In testimony Whereof We aflix our signatures.

ALBERT HANSEN. [1 s] MORTEN J. TORP. [n s] 

